CVE-2026-4555: d-link dir-513

Vulnerability summary

CVE-2026-4555 is a high (CVSS 9.0) vulnerability in d-link dir-513. EPSS estimates a 1.22% chance of exploitation in the next 30 days, higher than 68.1% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 22-03-2026
   PublishedVulnerability first disclosed.
2. 23-03-2026
   Last modifiedVulnerability information updated.

Description

A weakness has been identified in D-Link DIR-513 1.10. The impacted element is the function formEasySetTimezone of the file /goform/formEasySetTimezone of the component boa. This manipulation of the argument curTime causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. This vulnerability only affects products that are no longer supported by the maintainer.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
• CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.